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Finding the Fourth Proportional to 326,843.40, 490,265.10 and 227,310.60

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Solution

The fourth proportional to 326,843.40, 490,265.10 and 227,310.60 is: 340,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,843.40 : 490,265.10 = 227,310.60 : x
  2. Step 2: Convert to fraction form
    326,843.40/490,265.10 = 227,310.60/x
  3. Step 3: Cross multiply
    326,843.40x = 490,265.10 × 227,310.60
  4. Step 4: Simplify right side
    326,843.40x = 111,442,454,040.06
  5. Step 5: Solve for x
    x = 111,442,454,040.06/326,843.40
  6. Step 6: Final answer
    x = 340,965.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.